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Goodwill - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Goodwill
Goodwill	$ 331.7	$ 331.7
Accumulated goodwill impairment charge	34.6	34.6
Truckload
Goodwill
Goodwill	317.5	317.5
Logistics
Goodwill
Goodwill	$ 14.2	$ 14.2

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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